Noise from engine :(

[Nace20]

third

they should be ok

[stocious]

ok, cause im going from a diagram and its shows directly after the chain gear on inlet there in a narrow cap, then number 8 cap . so its the second one from gear !! pm me your email and i send you a manual. you can be looking too

[JP]

First of all dont worry about the cracks they're not cracks but casting flash. It's normal and not structural. Next looking at the pic rhe cap is right way round.

Oil wise these engines dont like thick oil. Thick oil = high pressure = poor flow = rapid breakdown of oil due to turbo heat resulting in poor protection and noisy too ends. All the engines i've always run on 5w40 platinum from your local audi garage with fantastic reliability. So long you make 2bar at 2000rpm when at full temp it doesn't matter what it drops to at idle.

Now the noise you are suffering from is lifter knock. It occurs when the lifters part seize in the lifter bores due to either excessive expansion of the cylinderhead on the exhaust side due to overheating (make sure water system is full and correctly bled) or due to poor lubrication. Cam pushes lifter down then as the cam comes back up the lifter momentarily stays down seized in it's bore. Then on release shoots up and hits the back of the cam lobe. Resulting in a knocking noise as in the vid.

[Nace20]

caps are ok or not?

As far as i know engine was never overheated, atleast not now when i have it, is there a way i check lubrication?

Is there anything to do to stop doing this noise

[andyg plym]

My car sounds exactly the same and my noise and mine is down to the cambrlt bring too tight I know this is true as I did it myself and will adjust it before I next drive it

You should be able to turn the belt 90 degrees between water pump and cam pulley and not more or less

I tightened mine up more as I thought it too slack when I replaced the belt but now believe it too tight,good job I have barely driven it

[Nace20]

i take cams off now, tappets look ok, new, exept i wasnt paying attention if they have seized they went all out

[Avantus]

Now the noise you are suffering from is lifter knock. It occurs when the lifters part seize in the lifter bores due to either excessive expansion of the cylinderhead on the exhaust side due to overheating (make sure water system is full and correctly bled) or due to poor lubrication. Cam pushes lifter down then as the cam comes back up the lifter momentarily stays down seized in it's bore. Then on release shoots up and hits the back of the cam lobe. Resulting in a knocking noise as in the vid.

Any way to cure those symptoms or is that a head ready for scrap?
Could you polish the bores slightly for example or would that cause to much play for the lifter.

[UrS4boy]

ok, cause im going from a diagram and its shows directly after the chain gear on inlet there in a narrow cap, then number 8 cap . so its the second one from gear !! pm me your email and i send you a manual. you can be looking too

Don't know what diagram you are looking at but this is the one that I use as a guide (the numbers read properly from the intake side of the head). The very front ones are not numbered.

[stocious]

i emailed him the manual, cause its hard to read, yours is alot clearer.. but its the same picture.

[s2_wot]

First of all dont worry about the cracks they're not cracks but casting flash. It's normal and not structural. Next looking at the pic rhe cap is right way round.

Oil wise these engines dont like thick oil. Thick oil = high pressure = poor flow = rapid breakdown of oil due to turbo heat resulting in poor protection and noisy too ends. All the engines i've always run on 5w40 platinum from your local audi garage with fantastic reliability. So long you make 2bar at 2000rpm when at full temp it doesn't matter what it drops to at idle.

Now the noise you are suffering from is lifter knock. It occurs when the lifters part seize in the lifter bores due to either excessive expansion of the cylinderhead on the exhaust side due to overheating (make sure water system is full and correctly bled) or due to poor lubrication. Cam pushes lifter down then as the cam comes back up the lifter momentarily stays down seized in it's bore. Then on release shoots up and hits the back of the cam lobe. Resulting in a knocking noise as in the vid.

Top quality post right there. I learned something today.